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add a simple user login system. Figures 2 and 3 show the layout and the required controls. The application should meet the following specifications: 1. Upon starting the application, display a form that asks the user to enter a username and password. 2. Validate the user's username and password, if it matches the required credentials.

add a simple user login system. Figures 2 and 3 show the layout and the required controls. The application should meet the following specifications: 1. Upon starting the application, display a form that asks the user to enter a username and password. 2. Validate the user's username and password, if it matches the required credentials.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Cashier Application_Surname from Question 26 and add a simple user login system. Figures 2 and 3 show the layout and the required controls. The application should meet the following specifications: 1. Upon starting the application, display a form that asks the user to enter a username and password. 2. Validate the user's username and password, if it matches the required credentials. 3. If the user has successfully logged in, close the login form and display the full name and department of the user. 4. Users can select Logout and Exit. 5. The application should contain two (2) separate classes: User Account and Cashier. The Cashier class should inherit from the UserAccount class. Make these classes members of the namespace User AccountNamespace. Refer to the UML class diagram below. Legend (+)-public (-)-private (*) - protected italicized abstract members User Login Username cashier101 Password File -full_name: string #user_name: string #user_password: string + UserAccount (string name, string uName, string password) validateLogin(string uName, string password): bool getFullName(): string 4 Cashier Purchase Discounted Item - department: string +Cashier(string name, string department, string uName, string password) validateLogin(string uName, string password): bool + getDepartment(): string Price: Logout Exit Application Login Figure 2. Example frmLoginAccount form layout and welcome message after successfully logging in User Account Total amount: 0.00 Payment received: Welcome Clarisa Castro of Financa Compute Change: 0.00 Discount (%): OK Quantity: X ... Submit Figure 3. Example frmPurchaseDiscounted Item with a menu strip control
Transcribed Image Text:Cashier Application_Surname from Question 26 and add a simple user login system. Figures 2 and 3 show the layout and the required controls. The application should meet the following specifications: 1. Upon starting the application, display a form that asks the user to enter a username and password. 2. Validate the user's username and password, if it matches the required credentials. 3. If the user has successfully logged in, close the login form and display the full name and department of the user. 4. Users can select Logout and Exit. 5. The application should contain two (2) separate classes: User Account and Cashier. The Cashier class should inherit from the UserAccount class. Make these classes members of the namespace User AccountNamespace. Refer to the UML class diagram below. Legend (+)-public (-)-private (*) - protected italicized abstract members User Login Username cashier101 Password File -full_name: string #user_name: string #user_password: string + UserAccount (string name, string uName, string password) validateLogin(string uName, string password): bool getFullName(): string 4 Cashier Purchase Discounted Item - department: string +Cashier(string name, string department, string uName, string password) validateLogin(string uName, string password): bool + getDepartment(): string Price: Logout Exit Application Login Figure 2. Example frmLoginAccount form layout and welcome message after successfully logging in User Account Total amount: 0.00 Payment received: Welcome Clarisa Castro of Financa Compute Change: 0.00 Discount (%): OK Quantity: X ... Submit Figure 3. Example frmPurchaseDiscounted Item with a menu strip control
Question 26 [MO31] Assume you have declared a method as follows: private static double CalculateDiscount (int acct =0, double price = 0, double discount= 0), Which of the following is a legal method call? A) CalculateDiscount (3000.00, 0.02) B) CalculateDiscount(); None of these is legal D) CalculateDiscount (200.00)
Transcribed Image Text:Question 26 [MO31] Assume you have declared a method as follows: private static double CalculateDiscount (int acct =0, double price = 0, double discount= 0), Which of the following is a legal method call? A) CalculateDiscount (3000.00, 0.02) B) CalculateDiscount(); None of these is legal D) CalculateDiscount (200.00)
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